Home / 11,680.48-16,119.40-6,375.64

Finding the Fourth Proportional to 11,680.48, 16,119.40 and 6,375.64

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Solution

The fourth proportional to 11,680.48, 16,119.40 and 6,375.64 is: 8,798.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.48 : 16,119.40 = 6,375.64 : x
  2. Step 2: Convert to fraction form
    11,680.48/16,119.40 = 6,375.64/x
  3. Step 3: Cross multiply
    11,680.48x = 16,119.40 × 6,375.64
  4. Step 4: Simplify right side
    11,680.48x = 102,771,435.18
  5. Step 5: Solve for x
    x = 102,771,435.18/11,680.48
  6. Step 6: Final answer
    x = 8,798.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.